![[feed]](/style/images/feed-icon-14x14.png){kind=icon}
Changes in properties of recycled polyethylenes.
Kumar, K. R. and Baldev, Raj. and Balasubramanyam, N. (1993) Changes in properties of recycled polyethylenes. Deutsche Lebensmittel Rundschau, 89 (12). 389-391, 7 ref..
![[img]](http://ir.cftri.res.in/style/images/fileicons/other.png) |
PDF
Deu Leb Rund 1993 389.pdf - Published Version Restricted to Registered users only Download (945kB) | Request a copy |
Abstract
To reduce costs and efficiently utilize raw materials, recycled plastics materials are added to fresh stocks or virgin plastics and converted into packaging materials. Effects of such additions on the physicochemical properties (thickness, tensile strength, elongation at breaking point, water vapour transmission rate, heat-seal strength and drop tests, migration and extraction tests) of LDPE films were studied to assess their suitability for use as food packaging materials. Recycled films were: A grade (containing extrusion waste of IPCL FS 300 Virgin grade LDPE); reprocessed milk pouches; or B grade (containing reprocessed PE from a variety of sources). Properties of recycled LDPE films were compared with those of virgin grade (IPCL FS 300) LDPE films. Values obtained for the films were compared with those specified for LDPE films by Indian Standards. Results suggest that impact strength and barrier properties of recycled LDPE films were greatly reduced, while extraction and migration properties were enhanced. The grade B LDPE film did not comply with the Indian Standards Specifications. It is concluded that addition of limited quantities of extrusion waste (obtained from the same plastics plant) may result in LDPE film of acceptable quality.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | ECOLOGY-; PACKAGING-MATERIALS; PHYSICAL-PROPERTIES; PLASTICS-FILMS; PHYSICOCHEMICAL-PROPERTIES; RECYCLING- |
| Subjects: | 600 Technology > 08 Food technology > 06 Preservation and Storage > 06 Packaging |
| Divisions: | Food Packaging Technology |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 18 Nov 2021 04:16 |
| Last Modified: | 18 Nov 2021 04:16 |
| URI: | http://ir.cftri.res.in/id/eprint/3334 |
Actions (login required)
 |
View Item |